umbilical artery n.
Either of two arteries that before birth is a continuation of the common iliac artery and after birth partly forms the medial umbilical ligament and partly is reduced in size and gives off the superior vesical artery.
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| a chattering or flighty, light-headed person. |
| a printed punctuation mark (‽), available only in some typefaces, designed to combine the question mark (?) and the exclamation point (!), indicating a mixture of query and interjection, as after a rhetorical question. |